Data Sheet

ES 503 Tri-Amp Entertainment Stereo System 11
ES 503
Technical Data
Speaker Type 3-amped Stereo System with
two full-range tops and one subwoofer
Acoustical Data
Frequency Response [-10dB] 37 - 15.000 Hz
Max SPL 121 dB
MF-HF 8x 3”
MF-HF Type Neodymium
LF 12”
Directivity 95x65°
Amplifier
Amp Technology Digipro® G3
Amp Class Class-D
Power Amp 1000 W
Controls 1x OLED Display with rotary encoder w/switch
1x Audio signal monitoring LED
1x USB port (service data)
Power Supply SMPS with PSU Auto-range
Power Connection VDE socket
Cooling Convection
Processor
Controller DSP 24 Bit/48 kHz
System Presets Factory presets + User defined
Limiter Dual Active, Peak, RMS, Thermal
Crossover Frequency LF-MF 206 Hz
Inputs
Mic/Instrument Channel 1x Combo (XLR/Jack) balanced/unbalanced input
Line Channels 2x Combo (XLR/Jack) balanced/unbalanced inputs
Media Channel 1x Bluetooth® built-in receiver
Mix Output 1x XLR balanced output
Mechanics
Housing (Subwoofer) 15mm Black Painted Birch Plywood
Housing (Tops) Polypropylene PP
Handles 2x lateral side (Subwoofer)
Dimensions WxHxD (Tops) 95x360x137 mm – 3.74x13.98x5.39 in
Dimensions WxHxD (Subwoofer) 465x400x430 mm - 18.3x15.7x16.9 in
Weight (1 Top) 1.9Kg – 4.19lbs.
Weight (Subwoofer) 16.4Kg – 36.16lbs.
ES 503 ¢
Tri-Amp Entertainment Stereo System
Acoustic Coherent Coverage
The ES Series is the result of experience
gained from dBTechnologies in the
acoustic design of vertical array systems.
The components of the top are aligned
mechanically (Logarithmic Curved Column
Array) so as to increase the coverage of the
vertical beam. Furthermore, there is a special
“double-ringed phase plug” that enhances
the horizontal coverage and guarantees a rich
and crystal clear sound to the system.
Fast Speaker Connection
The enclosure of the two satellites embeds a slide
connection system, which assures perfect top-to-top
matching without the risk of incorrect assembly. It also
includes the electrical connection between the two tops.
The letters A and B marks these two speakers respectively,
making them easily identifiable. The “A” satellite receives
the powered signal from the subwoofer through a 4-poles
male Speakon connector and relauch the audio through the
quick connection system on top of its cabinet. The “B“ satellite
is both equipped with the Speakon connector and the quick
connection system, but in case of stacked use its position
must be over the “A” speaker. In other words, both tops
can be used on speaker stands or poles, showing identical
acoustic characteristics and aesthetic, but in case of vertical
array the default setup must be respected.